Khanna specializes in the areas of race, identity, and biracial and multiracial people in America. Currently, her research projects include a study of black-white biracial adults living in the South, a comparative analysis of the shared experiences of multiracial black-white individuals and middle-class black Americans, and the effect of group identity on perceptions of justice and injustice. She currently teaches a variety of courses at UVM that look at race relations in the US and abroad.